GIS in the Cloud
August 30, 2010
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Brent
Jones described opportunities for surveyors in his welcome address. |
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Event:
2010 Esri Survey and Engineering GIS Summit
HOST: Esri, www.esri.com
Location: San Diego
Dates: July 10-13, 2010
Number of Attendees: 300
Future Dates and Location: The Survey Summit, a multidisciplinary business-focused
event co-sponsored by ACSM and Esri, July 7-12, 2010, San Diego, www.thesurveysummit.com.
It was a diverse crowd that attended this year’s
SEG Summit. According to Brent Jones, PE, PLS, Esri’s global marketing manager
for survey, cadastre and engineering, the total number of attendees was about
the same as last year, but the number of GIS attendees rose to capture 30
percent of the total. Approximately 49 percent of attendees were from the
surveying community, 12 percent were from engineering and 9 percent were from
other disciplines, including approximately 20 geodesists. Twenty-one countries
were represented at the event.
The blend of professionals served to emphasize some of the summit’s key themes,
particularly regarding the need for increased collaboration and education among
the various groups. In his welcome address, Jones cited a number of statistics
about data, including the fact that 85 percent of data in modern organizations
is unstructured, 30 percent of people’s time is spent searching for relevant
information, and 40 to 60 percent of an engineer’s time is spent locating and
validating information. These statistics highlight key opportunities for
surveyors, Jones said. He noted that geographic data has three
components--attributes, behavior and geometry--and pointed out that these
components don’t have to come from the same place. Through cloud
technology--remote online servers such as ArcGIS Online that allow continuous
data uploads and downloads for a fully integrated data solution--people can
connect to any data they want from anywhere. Jones commented that surveyors as
data managers might be the “new normal” as the need to aggregate, validate,
collect, manage and advise on data continues to increase.
Nancy von Meyer, PhD, PE, RLS, GISP, vice president of Fairview Industries and
one of the keynote speakers for the event, underscored the need for an enhanced
understanding of accuracy in the quest toward a national land parcel database.
She said that accuracy isn’t just measurement anymore but must involve the
element of time. To be accurate, she said, parcel data must be current and
complete. It must also have lineage so that it can be traced back to the
source. Related attributes should be included, along with details regarding
relative positioning or closure. And absolute positioning--how well the parcel
legal description matches the control point location of the boundary--is
becoming increasingly critical as geographic information systems take into
account the movement of the universe.
Exploring the Tools of the Trade
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| Dr.
Nancy von Meyer, keynote speaker, emphasized that
accuracy must involve the
element of time. |
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Ensuring the currency of data requires the ability to continuously update data
and add metadata, and the technology is now available to make that process
easier. Esri’s new ArcGIS 10 and ArcGIS Online were discussed at length during
the summit. New capabilities include the ability to incorporate a basemap layer
so that users can have reference points without disturbing the underlying data.
Improved search capabilities allow users to find specific standards, and
attribute tables are now available to compare values for quick updates. Users
can now share standards through templates, and a variety of new tools makes
editing easier. The software also incorporates 3D-specific tools for importing
models in a 3D environment, as well as 4D tools for time awareness.
Additionally, rich imagery can now be dynamically processed, integrated and
served as part of the map creation process.
One complaint often voiced by surveyors using ArcEditor is that there are too
many ways to accomplish a task and too many toolbars for all of the necessary
tasks. The parcel editing function in ArcGIS 10 simplifies this process
substantially. The number of templates available speed the data entry process.
Snapping is easier in ArcGIS 10, and much of the data entry can be automated.
Attachments have also improved; instead of being hyperlinked, now multiple
attachments can be added to a single feature, and all of these attachments are
stored in the geodatabase for easy access.
Many other features were also highlighted, but it was the “cloud” capability of
the software that seemed to draw the most discussion. An Esri “stunt team”
explained how users can build maps online and mash data from multiple sources
to improve their deliverables by working in the cloud at ArcGIS Online.
Limitless amounts of data can be stored in the same place for easy access by
multiple end users. Sharing content adds value, they explained, because it
allows people to make better decisions and drives collaboration. And as new
data are added to the system, the overall quality of the data improves so that
it becomes a continuous cycle of enhanced data management.
Breaking Down the Barriers
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| The
industry panel discussed the
role of surveyors in creating a national
land parcel database. |
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The idea sounds promising, but numerous barriers exist to perfecting the cloud,
not the least of which is a general reluctance toward the idea of freely
sharing data. During an industry panel moderated by Curt Sumner, LS, executive
director of ACSM, participants addressed the idea that surveyors need to take a
lead role in the creation of a national land parcel database. von Meyer, one of
the individuals on the panel, noted that a lot of data is missing from state
tax database systems and that surveyors can be the ones to propose legislation
that would provide standardization. She also pointed out that parcel data is
incredibly important in disasters. Counties with digital land bases can get aid
100 times faster than those without, she said. Wayne Harrison, president of the
NSPS and another panel participant, said that state surveying organizations need
to work more closely with state GIS committees to help guide the
standardization process, and that both groups have to educate each other.
A member of the audience pointed out that surveyors have a wealth of data
sitting in separate hard drives that could be useful to the creation of a
national land parcel database. However, being compensated for providing that
data remains a challenge. Ideas were discussed such as adding fees to titles
and other services involved in land transactions, but a resolution remains
elusive. There was a consensus that surveyors need to get involved at a
community level through boards and committees to educate people about the value
of accurate surveys. The hope is that the increased understanding will then be
driven up through higher levels of government so that standardization can
ultimately be achieved on a national level.
How to best use the cloud to improve business success remains a bit of a
mystery. Based on the discussions at the summit and afterward, some firms are
already masters of serving up and sourcing data from remote geodatabases, while
others are still trying to grasp the concept of moving data beyond internal
systems. As technology advances, professionals and firms will need to closely evaluate
their role. Opportunities for leadership still exist in this new realm. Editor’s note: For more insights on the SEG Summit as well as the Esri International User Conference and general GIS trends, follow the blog Trends in GIS at www.rpls.com.
Special reporting by Michael L.
Binge, LS, GISP, Deral Paulk, LS, and Christine Grahl.
Hear audio clips from a panel hosted by the California Land Surveyors
Association. You can also find the clips at www.rpls.com. Summit-CSLA Panel 1 Summit-CLSA Panel 2 Summit-CSLA Panel 3
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